Finding the Fourth Proportional to 1,670,351.40, 2,305,136.10 and 981,896.94
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Solution
The fourth proportional to 1,670,351.40, 2,305,136.10 and 981,896.94 is: 1,355,047.86
Step by Step Solution
- Step 1: Write the proportion equation
1,670,351.40 : 2,305,136.10 = 981,896.94 : x - Step 2: Convert to fraction form
1,670,351.40/2,305,136.10 = 981,896.94/x - Step 3: Cross multiply
1,670,351.40x = 2,305,136.10 × 981,896.94 - Step 4: Simplify right side
1,670,351.40x = 2,263,406,082,873.53 - Step 5: Solve for x
x = 2,263,406,082,873.53/1,670,351.40 - Step 6: Final answer
x = 1,355,047.86
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.